Local vet in a shambles (6)
I believe the answer is:
native
'local' is the definition.
('native' can be similar in meaning to 'local')
'vet in a shambles' is the wordplay.
'shambles' indicates anagramming the letters.
'vet'+'in'+'a'='vetina'
'vetina' is an anagram of 'NATIVE'.
(Other definitions for native that I've seen before include "Resident" , "Belonging to one by birth" , "In a natural state" , "Original inhabitant" , "One who belongs to place by birth" .)